Don’t blame Oscars co-producer Adam Shankman for the snub of Farrah Fawcett, who was coldly left out of the segment memorializing Patrick Swayze, Michael Jackson, Brittany Murphy Karl Malden and others. It was the academy’s decision. When Fawcett succumbed to anal cancer last June, Shankman tearfully tweeted: “Farewell Farrah. Forever you will be an angel here on Earth, and now in heaven.” Fawcett appeared in 16 films — including “The Cannonball Run,” “Extremities,” “Dr. T and the Women” and “The Apostle,” for which she was nominated for an Independent Spirit Award — but Leslie Unger, spokeswoman for the Academy of Motion Picture Arts & Sciences, told reporters: “I would not say that it was an oversight . . . Not everybody who passed during the year can be included. That’s the unfortunate reality.”